{"id":"vidhyamitra:city-day:thiruvananthapuram:2026-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thiruvananthapuram/2026-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-02-01","date_display":"February 1, 2026 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461072.770833,"kali_year":5127,"ahargana":1872607.2708,"sun":{"sidereal_longitude":287.9148,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":97.891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.9763,"elapsed_within_tithi_degrees":1.9763},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.891,"elapsed_within_degrees":4.5577},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.8058},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2026,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461072.770833,"ahargana":1872607.2708,"kali_year":5127,"ayanamsa_lahiri":24.2174,"grahas":{"sun":{"sidereal_longitude":287.960279,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":96.22237899999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false,"latitude":3.0306},"mars":{"sidereal_longitude":282.14757899999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":294.982879,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":82.98417899999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":true},"venus":{"sidereal_longitude":293.665979,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":334.51587900000004,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":320.2552,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":140.2552,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2026,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461072.770833,"kali_year":5127,"ahargana":1872607.2708,"sun":{"sidereal_longitude":287.9148,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":97.891,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":169.9763,"elapsed_within_tithi_degrees":1.9763},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.891,"elapsed_within_degrees":4.5577},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.8058},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.031,"elongation":169.976},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.031,"opposition_distance":10.024}},"eclipse_window_40days":[]},"city":{"slug":"thiruvananthapuram","name":"Thiruvananthapuram, Kerala","lat":8.5241,"lon":76.9366,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thiruvananthapuram","name":"Thiruvananthapuram, Kerala","lat":8.5241,"lon":76.9366,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:43","sunsetLocal":"18:29","solarNoonLocal":"12:36","dayLengthHours":11.764310930799091,"dayLengthDisplay":"11 Hours 45 Mins 52 Secs","nightLengthDisplay":"12 Hours 14 Mins 08 Secs","moonriseLocal":"17:34","moonsetLocal":"06:04","rahuKala":{"name":"Rāhu Kāla","start":"17:01","end":"18:29","startHours":17.010665734339586,"endHours":18.481204600689473,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:36","end":"14:04","startHours":12.599049135289928,"endHours":14.069588001639813,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:32","end":"17:01","startHours":15.540126867989699,"endHours":17.010665734339586,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:28","end":"09:51","startHours":9.461899553743503,"endHours":9.854043251436806,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:12","end":"07:31","startHours":7.20707329200701,"endHours":7.520788250161653,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:12","end":"12:59","startHours":12.206905437596625,"endHours":12.99119283298323,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:09","end":"05:56","startHours":5.148318879117169,"endHours":5.932606274503775,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:43","startHours":5.736534425657124,"endHours":6.716893669890381,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:34","end":"15:21","startHours":14.559767623756443,"endHours":15.344055019143049,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.281204600689474,"endHours":18.681204600689473,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"18:58","startHours":18.481204600689473,"endHours":18.9713842228061,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.231204600689473,"endHours":19.981204600689473,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:12","end":"00:59","startHours":24.206905437596625,"endHours":24.99119283298323,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:43","end":"08:11","startHours":6.716893669890381,"endHours":8.187432536240268,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:39","startHours":8.187432536240268,"endHours":9.657971402590153,"quality":"neutral"},{"name":"Labha","start":"09:39","end":"11:08","startHours":9.657971402590153,"endHours":11.12851026894004,"quality":"auspicious"},{"name":"Amṛta","start":"11:08","end":"12:36","startHours":11.12851026894004,"endHours":12.599049135289928,"quality":"auspicious"},{"name":"Kāla","start":"12:36","end":"14:04","startHours":12.599049135289928,"endHours":14.069588001639813,"quality":"inauspicious"},{"name":"Śubha","start":"14:04","end":"15:32","startHours":14.069588001639813,"endHours":15.540126867989699,"quality":"auspicious"},{"name":"Roga","start":"15:32","end":"17:01","startHours":15.540126867989699,"endHours":17.010665734339586,"quality":"inauspicious"},{"name":"Udveg","start":"17:01","end":"18:29","startHours":17.010665734339586,"endHours":18.481204600689473,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:29","end":"20:01","startHours":18.481204600689473,"endHours":20.010665734339586,"quality":"auspicious"},{"name":"Roga","start":"20:01","end":"21:32","startHours":20.010665734339586,"endHours":21.5401268679897,"quality":"inauspicious"},{"name":"Udveg","start":"21:32","end":"23:04","startHours":21.5401268679897,"endHours":23.069588001639815,"quality":"inauspicious"},{"name":"Chala","start":"23:04","end":"00:36","startHours":23.069588001639815,"endHours":24.599049135289928,"quality":"neutral"},{"name":"Labha","start":"00:36","end":"02:08","startHours":24.599049135289928,"endHours":26.12851026894004,"quality":"auspicious"},{"name":"Amṛta","start":"02:08","end":"03:39","startHours":26.12851026894004,"endHours":27.657971402590157,"quality":"auspicious"},{"name":"Kāla","start":"03:39","end":"05:11","startHours":27.657971402590157,"endHours":29.18743253624027,"quality":"inauspicious"},{"name":"Śubha","start":"05:11","end":"06:43","startHours":29.18743253624027,"endHours":30.716893669890382,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:43","end":"07:43","startHours":6.716893669890381,"endHours":7.716893669890381,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:43","end":"08:43","startHours":7.716893669890381,"endHours":8.716893669890382,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:43","end":"09:43","startHours":8.716893669890382,"endHours":9.716893669890382,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:43","end":"10:43","startHours":9.716893669890382,"endHours":10.716893669890382,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:43","end":"11:43","startHours":10.716893669890382,"endHours":11.716893669890382,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:43","end":"12:43","startHours":11.716893669890382,"endHours":12.716893669890382,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:43","end":"13:43","startHours":12.716893669890382,"endHours":13.716893669890382,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:43","end":"14:43","startHours":13.716893669890382,"endHours":14.716893669890382,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:43","end":"15:43","startHours":14.716893669890382,"endHours":15.716893669890382,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:43","end":"16:43","startHours":15.716893669890382,"endHours":16.716893669890382,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:43","end":"17:43","startHours":16.716893669890382,"endHours":17.716893669890382,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:43","end":"18:43","startHours":17.716893669890382,"endHours":18.716893669890382,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:43","end":"19:43","startHours":18.716893669890382,"endHours":19.716893669890382,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:43","end":"20:43","startHours":19.716893669890382,"endHours":20.716893669890382,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:43","end":"21:43","startHours":20.716893669890382,"endHours":21.716893669890382,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:43","end":"22:43","startHours":21.716893669890382,"endHours":22.716893669890382,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:43","end":"23:43","startHours":22.716893669890382,"endHours":23.716893669890382,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:43","end":"00:43","startHours":23.716893669890382,"endHours":24.716893669890382,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:43","end":"01:43","startHours":24.716893669890382,"endHours":25.716893669890382,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:43","end":"02:43","startHours":25.716893669890382,"endHours":26.716893669890382,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:43","end":"03:43","startHours":26.716893669890382,"endHours":27.716893669890382,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:43","end":"04:43","startHours":27.716893669890382,"endHours":28.716893669890382,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:43","end":"05:43","startHours":28.716893669890382,"endHours":29.716893669890382,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:43","end":"06:43","startHours":29.716893669890382,"endHours":30.716893669890382,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Śrīvatsa","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.14231267281524,"eotMinutes":-13.689348117395623,"ayanamsa":24.2174}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Dedicated festival walk for Māghī Pūrṇimā is not live yet; Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"thiruvananthapuram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 1, 2026 CE · Thiruvananthapuram, Kerala · Vidhyamitra","description":"February 1, 2026 CE for Thiruvananthapuram, Kerala: Śukla Pūrṇimā, sūryodaya 06:43, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thiruvananthapuram/2026-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thiruvananthapuram/2026-02-01","sa":"https://sa.vidhyamitra.com/city/thiruvananthapuram/2026-02-01","hi":"https://hi.vidhyamitra.com/city/thiruvananthapuram/2026-02-01","x-default":"https://vidhyamitra.com/city/thiruvananthapuram/2026-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-22T12:51:52.143Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-08-22T12:51:52.143Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-22T12:51:52.143Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}